Nice, a good chapter to make me want to drop it. I loved the premise but this story very quickly going to derail and become shitty generic isekai.
Harem member #1 is already annoying as shit right off the bat and MC is disgusting, to interpret a friendly kiss as something super sexual. First of all you're not even a human, you're a virus that's controlling a wolf. Second, a kiss on the snout would be similar to a kiss on the cheek which is normal even between children and adults.
Disregarding how a wolf/virus would be able to understand human language, she's given enough information to know that it would likely be safe to infect humans. Swords & primitive armor, having to earn a living at a young age, adventurers -> collecting medicinal herbs, villages don't have adequate defense against the literally weakest monsters, young girl working fields rather than men = possible war or labourer shortage.